Killing a lot of people and causing the 9/11 attacks
A couple good questions would be: (assuming it's an experiment) Can it be redone with the same result and can the information being used be cited. Hope it helps!
Aztecs irrigated and reclaimed swampland so that they could farm.
<u>Explanation</u>:
Aztec refers to people of Central Mexico speaking Nahuatl. The Aztecs were known for introducing irrigation, agriculture and cultivating the land. These people involved in draining swamps and creating artificial islands in the lakes. The artificial island is used for farming.
Aztecs were involved in building pyramids and temples. They learned irrigation to change their habits. Farming became their major occupation. Hieroglyphic writing was introduced by Aztecs. Complex calendar system was implemented and used by Aztecs.
I think the answer is A, charged :))
